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Finding the Fourth Proportional to 473.26, 652.76 and 276.70

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Solution

The fourth proportional to 473.26, 652.76 and 276.70 is: 381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.26 : 652.76 = 276.70 : x
  2. Step 2: Convert to fraction form
    473.26/652.76 = 276.70/x
  3. Step 3: Cross multiply
    473.26x = 652.76 × 276.70
  4. Step 4: Simplify right side
    473.26x = 180,618.69
  5. Step 5: Solve for x
    x = 180,618.69/473.26
  6. Step 6: Final answer
    x = 381.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.